Home / 55,516.80-76,615.02-30,366.30

Finding the Fourth Proportional to 55,516.80, 76,615.02 and 30,366.30

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Solution

The fourth proportional to 55,516.80, 76,615.02 and 30,366.30 is: 41,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,516.80 : 76,615.02 = 30,366.30 : x
  2. Step 2: Convert to fraction form
    55,516.80/76,615.02 = 30,366.30/x
  3. Step 3: Cross multiply
    55,516.80x = 76,615.02 × 30,366.30
  4. Step 4: Simplify right side
    55,516.80x = 2,326,514,681.83
  5. Step 5: Solve for x
    x = 2,326,514,681.83/55,516.80
  6. Step 6: Final answer
    x = 41,906.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.